Production process of cross-linked polyaspartic acid resin
    2.
    发明授权
    Production process of cross-linked polyaspartic acid resin 失效
    交联聚天冬氨酸树脂的生产工艺

    公开(公告)号:US6072024A

    公开(公告)日:2000-06-06

    申请号:US42942

    申请日:1998-03-17

    IPC分类号: C08G73/10 C08G69/10

    CPC分类号: C08G73/1092

    摘要: A process is disclosed for producing with good productivity a cross-linked polyaspartic acid resin having biodegradability and high water absorbency. The process features inclusion of one of the following steps: (a) a polysuccinimide, which has been brought into a dispersed state by a dispersant, and a cross-linking agent are reacted to produce the cross-linked polyaspartic acid resin; (b) imide rings of a cross-linked polysuccinimide are subjected to a hydrolysis reaction while controlling a swelling degree of a resulting gel, whereby the cross-linked polyaspartic acid resin is produced; and (c) a gel of a cross-linked polysuccinimide, which has been obtained by reacting a cross-linking agent to a solution of a polysuccinimide in an organic solvent, is disintegrated to subject imide rings of the cross-linked polysuccinimide to a hydrolysis reaction, so that the cross-linked polyaspartic acid resin is produced. The process may also include one or both of the following steps as needed: (d) a gel of the cross-linked polyaspartic acid resin is washed with water and/or a water-miscible organic solvent; and (e) the polysuccinimide is produced using a basic amino acid as a cross-linking agent.

    摘要翻译: 公开了一种具有生物降解性和高吸水性的交联聚天冬氨酸树脂以高生产率生产的方法。 该方法包括以下步骤之一:(a)已经通过分散剂进入分散状态的聚琥珀酰亚胺和交联剂反应生成交联聚天冬氨酸树脂; (b)交联聚琥珀酰亚胺的酰亚胺环进行水解反应同时控制所得凝胶的溶胀度,从而制得交联聚天冬氨酸树脂; 和(c)通过使交联剂与聚琥珀酰亚胺在有机溶剂中的溶液反应而获得的交联聚琥珀酰亚胺的凝胶被分解以使交联的聚琥珀酰亚胺的酰亚胺环进行水解 反应,制成交联聚天冬氨酸树脂。 该方法还可以根据需要包括以下步骤中的一种或两种:(d)用水和/或水混溶性有机溶剂洗涤交联聚天冬氨酸树脂的凝胶; 和(e)使用碱性氨基酸作为交联剂制备聚琥珀酰亚胺。

    Cross-linked polymer
    3.
    发明授权
    Cross-linked polymer 失效
    交联聚合物

    公开(公告)号:US5986042A

    公开(公告)日:1999-11-16

    申请号:US14421

    申请日:1998-01-27

    IPC分类号: C08G69/48 C08G73/02 C08G69/10

    摘要: A cross-linked polymer containing, in its molecule, recurring units represented by the following formula (1), and having biodegradability and high water-absorbency: ##STR1## wherein R.sub.1 is a pendant group having at least one functional group selected from the group consisting of acidic groups and salts thereof, a glycino group and salts thereof, cationic groups and betaine groups; X.sub.1 is NH, NR.sub.1 ', R.sub.1 ' being an alkyl, aralkyl or aryl group, O or S; and n.sub.1 is 1 or 2.

    摘要翻译: 在其分子中含有由下式(1)表示的重复单元并且具有生物降解性和高吸水性的交联聚合物:其中R1是具有至少一个选自酸性的官能团的侧基 基团和盐,缩水甘油基及其盐,阳离子基团和甜菜碱基团; X1是NH,NR1',R1'是烷基,芳烷基或芳基,O或S; n1为1或2。

    Production process of cross-linked polysuccinimide resin
    4.
    发明授权
    Production process of cross-linked polysuccinimide resin 有权
    交联聚琥珀酰亚胺树脂的生产工艺

    公开(公告)号:US06346569B1

    公开(公告)日:2002-02-12

    申请号:US09514954

    申请日:2000-02-28

    IPC分类号: C08J324

    CPC分类号: C08G73/1092

    摘要: A process is disclosed for producing with good productivity a cross-linked polyaspartic acid resin having biodegradability and high water absorbency. The process features inclusion of one of the following steps: (a) a polysuccinimide, which has been brought into a dispersed state by a dispersant, and a cross-linking agent are reacted to produce the cross-linked polyaspartic acid resin; (b) imide rings of a cross-linked polysuccinimide are subjected to a hydrolysis reaction while controlling a swelling degree of a resulting gel, whereby the cross-linked polyaspartic acid resin is produced; and (c) a gel of a cross-linked polysuccinimide, which has been obtained by reacting a cross-linking agent to a solution of a polysuccinimide in an organic solvent, is disintegrated to subject imide rings of the cross-linked polysuccinimide to a hydrolysis reaction, so that the cross-linked polyaspartic acid resin is produced. The process may also include one or both of the following steps as needed: (d) a gel of the cross-linked polyaspartic acid resin is washed with water and/or a water-miscible organic solvent; and (e) the polysuccinimide is produced using a basic amino acid as a cross-linking agent.

    摘要翻译: 公开了一种具有生物降解性和高吸水性的交联聚天冬氨酸树脂以高生产率生产的方法。 该方法包括以下步骤之一:(a)已经通过分散剂进入分散状态的聚琥珀酰亚胺和交联剂反应生成交联聚天冬氨酸树脂; (b)交联聚琥珀酰亚胺的酰亚胺环进行水解反应同时控制所得凝胶的溶胀度,从而制得交联聚天冬氨酸树脂; 和(c)通过使交联剂与聚琥珀酰亚胺在有机溶剂中的溶液反应而获得的交联聚琥珀酰亚胺的凝胶被分解以使交联的聚琥珀酰亚胺的酰亚胺环进行水解 反应,制成交联聚天冬氨酸树脂。 该方法还可以根据需要包括以下步骤中的一种或两种:(d)用水和/或水混溶性有机溶剂洗涤交联聚天冬氨酸树脂的凝胶; 和(e)使用碱性氨基酸作为交联剂制备聚琥珀酰亚胺。

    Biodegradable polymer, production method thereof, molded product thereof, and use thereof
    5.
    发明授权
    Biodegradable polymer, production method thereof, molded product thereof, and use thereof 有权
    可生物降解聚合物及其制备方法及其用途

    公开(公告)号:US07928180B2

    公开(公告)日:2011-04-19

    申请号:US11988008

    申请日:2006-06-28

    摘要: The problem of the invention is to provide a novel biodegradable polymer without water solubility (hygroscopicity), but with moldability and excellent water disintegratability and biodegradability, a production method thereof, a molded product thereof and applications thereof. The biodegradable polymer of the invention is a biodegradable polymer having one or more imine bonds within a molecule, characterized in that the imine bond constitutes part of a main chain structure of the biodegradable polymer. The biodegradable polymer preferably comprises a biodegradable unit and an imine unit having one or more imine bonds and has a chemical structure, in which the biodegradable units are linked by the imine unit.

    摘要翻译: 本发明的问题是提供一种不具有水溶性(吸湿性)但具有成型性和优异的水分解性和生物降解性的新型可生物降解聚合物,其制备方法,其成型产品和应用。 本发明的可生物降解的聚合物是在分子内具有一个或多个亚胺键的可生物降解的聚合物,其特征在于亚胺键构成可生物降解的聚合物的主链结构的一部分。 生物可降解聚合物优选包含可生物降解的单元和具有一个或多个亚胺键并具有化学结构的亚胺单元,其中可生物降解单元通过亚胺单元连接。

    Biodegradable Polymer, Production Method Thereof, Molded Product Thereof, and Use Thereof
    6.
    发明申请
    Biodegradable Polymer, Production Method Thereof, Molded Product Thereof, and Use Thereof 有权
    可生物降解聚合物,其生产方法,其成型产品及其用途

    公开(公告)号:US20090142982A1

    公开(公告)日:2009-06-04

    申请号:US11988008

    申请日:2006-06-28

    IPC分类号: D04H13/00 C08G73/10 C08L79/08

    摘要: The problem of the invention is to provide a novel biodegradable polymer without water solubility (hygroscopicity), but with moldability and excellent water disintegratability and biodegradability, a production method thereof, a molded product thereof and applications thereof. The biodegradable polymer of the invention is a biodegradable polymer having one or more imine bonds within a molecule, characterized in that the imine bond constitutes part of a main chain structure of the biodegradable polymer. The biodegradable polymer preferably comprises a biodegradable unit and an imine unit having one or more imine bonds and has a chemical structure, in which the biodegradable units are linked by the imine unit.

    摘要翻译: 本发明的问题是提供一种不具有水溶性(吸湿性)但具有成型性和优异的水分解性和生物降解性的新型可生物降解聚合物,其制备方法,其成型产品和应用。 本发明的可生物降解的聚合物是在分子内具有一个或多个亚胺键的可生物降解的聚合物,其特征在于亚胺键构成可生物降解的聚合物的主链结构的一部分。 生物可降解聚合物优选包含可生物降解的单元和具有一个或多个亚胺键并具有化学结构的亚胺单元,其中可生物降解单元通过亚胺单元连接。

    Production process of polysuccinimide
    7.
    发明授权
    Production process of polysuccinimide 有权
    聚琥珀酰亚胺的生产工艺

    公开(公告)号:US06657041B1

    公开(公告)日:2003-12-02

    申请号:US09868498

    申请日:2001-06-18

    IPC分类号: C08G6910

    CPC分类号: C08G73/1092 C08G69/10

    摘要: A production process of high molecular weight polysuccinimide having a weight average molecular weight of 40,000 or higher is disclosed, which comprises the following steps: 1) mixing and heating aspartic acid and an acidic catalyst to produce a liquid, low molecular weight polymer mixture, 2) separating the acidic catalyst to appropriate extent from the liquid, low molecular weight polymer mixture, thereby directly changing a polymer-containing phase from a liquid phase into a solid phase to produce a solid, low molecular weight polymer mixture, and 3) conducting solid-state polymerization on the thus-obtained solid, low molecular weight polymer mixture. This process can be practiced in a simple apparatus, and is free of problems such as formation of a highly viscous phase, excessive formation of foam, and formation of a reaction mixture into coherent mass.

    摘要翻译: 公开了重均分子量为40,000以上的高分子量聚琥珀酰亚胺的生产方法,其包括以下步骤:1)将天冬氨酸和酸性催化剂混合加热以制备液体低分子量聚合物混合物2 )将酸性催化剂从液态低分子量聚合物混合物中分离出适当的程度,由此直接将含聚合物的相从液相转变为固相以产生固体低分子量聚合物混合物,和3)导电固体 在这样得到的固体低分子量聚合物混合物上进行状态聚合。 该方法可以在简单的装置中实施,并且没有诸如高粘性相的形成,泡沫过度形成以及反应混合物形成连续质量的问题。

    Phase shift photomask
    8.
    发明授权
    Phase shift photomask 失效
    相移光掩模

    公开(公告)号:US5387485A

    公开(公告)日:1995-02-07

    申请号:US158210

    申请日:1993-11-29

    IPC分类号: G03F1/26 G03F1/30 G03F9/00

    CPC分类号: G03F1/30 G03F1/26

    摘要: A phase shift photomask for forming a fine-line pattern with high dimensional accuracy even at different focus positions. The phase shift photomask has a transparent substrate (1) of quartz, for example, and a light-shielding film (2) of chromium, for example, provided on the substrate (1). The light-shielding film (2) is partially removed to form a first opening pattern (4a) and a second opening pattern (4b) with a very small width which is annularly provided in a peripheral region adjacent to the first opening pattern (4a). The light-shielding film (2c) is left in each of the four corners of the second opening pattern (4b). In addition, a phase shifter layer 3 is provided over either of the first or second opening patterns (4a, 4b).

    摘要翻译: 一种相移光掩模,用于即使在不同的焦点位置也可以形成具有高尺寸精度的细线图案。 相移光掩模例如具有石英的透明基板(1)和例如设置在基板(1)上的铬的遮光膜(2)。 遮光膜(2)被部分去除以形成第一开口图案(4a)和具有非常小的宽度的第二开口图案(4b),环形地设置在与第一开口图案(4a)相邻的周边区域中, 。 遮光膜(2c)留在第二开口图案(4b)的四个角中的每一个中。 此外,在第一或第二开口图案(4a,4b)之一上设置移相器层3。